CN111576424B - Grouting device and construction method for grouting at deformation joint of cast-in-place pipe gallery - Google Patents

Grouting device and construction method for grouting at deformation joint of cast-in-place pipe gallery Download PDF

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Publication number
CN111576424B
CN111576424B CN202010400762.6A CN202010400762A CN111576424B CN 111576424 B CN111576424 B CN 111576424B CN 202010400762 A CN202010400762 A CN 202010400762A CN 111576424 B CN111576424 B CN 111576424B
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China
Prior art keywords
grouting
deformation joint
bottom plate
pipe
pipe gallery
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CN202010400762.6A
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CN111576424A (en
Inventor
李志成
孟贞
李庆辉
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China First Metallurgical Group Co Ltd
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China First Metallurgical Group Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/10Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/16Arrangement or construction of joints in foundation structures
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water

Abstract

The invention discloses a grouting device, which comprises a grouting pipe and a connecting box, wherein one end of the grouting pipe is fixed on the connecting box and is communicated with the inside of the connecting box; the other end port of the grouting pipe is a grout outlet, and the grout outlet is provided with a port sealing connecting assembly; the interior of the connecting box is hollow, and the connecting box is provided with a sealing box plug; and at least two side connecting plates used for being connected with a building structure are symmetrically arranged on two sides of the connecting box respectively. The invention also discloses a construction method for grouting the deformation joint of the cast-in-place pipe gallery. The invention has the beneficial effects that: the construction process of the deformation joint of the cast-in-situ pipe gallery is improved, and a grouting process is additionally arranged, so that the caulking plate in the deformation joint is more tightly combined with the wall body, and the falling phenomenon cannot occur.

Description

Grouting device and construction method for grouting at deformation joint of cast-in-place pipe gallery
Technical Field
The invention relates to the field of municipal construction, in particular to a grouting device and a construction method for grouting at a deformation joint of a cast-in-place pipe gallery.
Background
The utility tunnel is one of the important marks of the modernization of the novel urban municipal infrastructure construction, avoids the trouble of repeated excavation of the road surface caused by burying or maintaining pipelines, greatly improves the safety because the pipelines are laid in the special pipe gallery space, prolongs the service life of the pipelines, and more highlights the superiority in the urban pipeline engineering. However, in the construction process of the utility tunnel, water prevention and seepage prevention are important, once the pipe gallery leaks water and seeps water when in operation and management, the service life of the pipe gallery and the internal laid pipelines is directly influenced, the maintenance is troublesome, and the serious person who leaks water can even cause the pipe gallery to be scrapped and the city is paralyzed, and the consequence is very serious. In the waterproof construction of utility tunnel, the waterproof construction of its movement joint department is especially important, and this position is the waterproof weakest position of piping lane, leaks water, infiltration often also begin from this position earlier. In the waterproof design of utility tunnel movement joint, need set up the rubber waterstop and the caulking plate of taking the steel limit in the movement joint usually, the pipe gallery can freely stretch out and draw back in movement joint department on the one hand, and on the other hand also makes the movement joint possess waterproof ability. Because the waterproof construction process of movement joint department is more, its construction quality is difficult to guarantee to along with the time increase, the rubber waterstop on steel limit takes place the breakage easily, the caulking plate also drops the off normal easily, so, the pipe gallery movement joint department just exposes the problem of leaking of not equidimension.
Therefore, further research on the water seepage and leakage problems at the deformation joint of the cast-in-situ pipe gallery is very necessary.
Disclosure of Invention
The invention aims to provide a construction method for additionally arranging a grouting process at a deformation joint of a cast-in-place pipe gallery aiming at the defects of the traditional technology in the construction of the deformation joint of the cast-in-place pipe gallery, so that the waterproof and anti-seepage effects at the deformation joint are improved.
The technical scheme adopted by the invention is as follows: a grouting device comprises a grouting pipe and a connecting box, wherein one end of the grouting pipe is fixed on the connecting box and is communicated with the inside of the connecting box; the other end port of the grouting pipe is a grout outlet, and the grout outlet is provided with a port sealing connecting assembly; the interior of the connecting box is hollow, and the connecting box is provided with a sealing box plug; and at least two side connecting plates used for being connected with a building structure are symmetrically arranged on two sides of the connecting box respectively.
According to the scheme, the grouting pipe extends out along the direction perpendicular to the top surface of the connecting box and then is bent.
According to the scheme, the port sealing and connecting assembly comprises a fixing clamping plate and an end rubber plug, wherein the end rubber plug is composed of a head part and a tail part, the head part is matched with the grouting pipe and is inserted into the grouting pipe; the middle part of the fixed clamping plate is provided with a central hole for the end rubber plug to pass through, and the aperture of the central hole is smaller than the outer diameter of the tail part of the end rubber plug; and two sides of the fixed clamping plate are connected with the building structure.
According to the scheme, a plurality of grouting pipes are arranged on the connecting box at intervals in parallel; the bending sections of the grouting pipes are parallel, and the center of the grout outlet is positioned on a straight line.
According to the scheme, the sealing box plug is made of rubber materials; the lateral connecting plate extends out from the edge of the connecting box, and a connecting hole used for being connected with a building structure is formed in the lateral connecting plate.
The invention also provides a construction method for grouting the deformation joint of the cast-in-place pipe gallery, which comprises the following steps:
preparing before construction, and providing a plurality of grouting devices;
step two, constructing a pipe gallery cushion layer, a bottom plate waterproof coiled material and a waterproof coiled material protective layer in sequence;
binding a bottom plate steel bar, and installing a galvanized water-stop steel plate at the construction joint;
fourthly, installing and reinforcing a longitudinal side template and an axillary angle template of the bottom plate, and additionally arranging an additional template for installing the grouting device at the top of the deformation joint of the bottom plate;
fifthly, installing the grouting devices on the inner side longitudinal side template of the upturning side wall of the bottom plate and the additional template at the deformation joint of the bottom plate respectively;
sixthly, installing a rubber water stop belt with a steel edge in the middle of the bottom plate;
seventhly, mounting an end plugging template of the deformation joint bottom plate and the upward-turned side wall of the bottom plate, tightening and fixing the template after fixing the foam strips towards the inner side of the gallery body by the end plugging template, and tightening a fixing clamping plate of the grouting device on the end plugging template;
step eight, pouring bottom plate concrete, curing and forming, and removing the mold after the strength requirement is met; then removing the foam strips pre-embedded in the concrete to form notches;
step nine, examining the step four-eighth, finishing the top plate pouring, the form removal and the foam strip digging, and forming notches on the cross sections of the top plate and the side walls;
step ten, inserting a closed rubber strip into each notch;
step eleven, coating glue on the whole cross section of the deformation joint of the pipe gallery, installing a caulking plate and a water swelling water stop strip, and tightly adhering the caulking plate and the closed rubber strip after clamping;
step twelve, constructing another warehouse pipe gallery according to a traditional method, and constructing organic fireproof paint, two-component polyurethane sealant and a pipe gallery outer wall waterproof coiled material at a deformation joint of the junction of the two warehouse pipe galleries;
and thirteen, performing grouting treatment on the deformation joint through the reserved grouting device, so that the gap in the deformation joint of the pipe gallery is filled with slurry.
According to the scheme, in the sixth step, the installation method of the rubber waterstop comprises the following steps: the lead wire penetrates through a small hole at the tail part of the rubber water stop belt and is bound with the full-length additional longitudinal rib; and the additional longitudinal bar is fixed by lead wires, so that the longitudinal bar is firmly connected with the inner and outer layer steel bars of the upturned side wall of the bottom plate or the upper and lower layer steel bars of the bottom plate.
According to the scheme, in the eighth step, the rubber plug at the end of the grouting pipe of the grouting device is removed after the mold is removed, and the adhesive tape is used for temporarily plugging the grout outlet of the grouting pipe.
According to the scheme, in the fifth step, the installation method of the grouting device comprises the following steps: and holes are formed in the installed inner longitudinal side templates, and bolts penetrate through the templates and the side connecting plates of the grouting device connecting box and are tightened to enable the grouting device connecting box to be tightened on the additional templates.
The invention has the beneficial effects that: aiming at the condition that the deformation joint of the cast-in-place underground comprehensive pipe gallery is easy to leak water and seep water during construction according to the traditional waterproof design, the construction process of the deformation joint of the cast-in-place pipe gallery is improved, and a grouting process is added, so that a caulking plate in the deformation joint is more tightly combined with a wall body, and the falling phenomenon cannot occur; meanwhile, the designed two closed rubber strips can prevent slurry from overflowing to pollute the pipe gallery during grouting on one hand, and gaps are filled after grouting on the other hand to form two waterproof barriers, so that the waterproof capability of the deformation joint of the pouring comprehensive pipe gallery is enhanced, and the risks of water seepage and water leakage are reduced; the invention has convenient construction and simple process principle, and can obviously improve the waterproof effect and quality of the deformation joint of the cast-in-place underground comprehensive pipe gallery.
Drawings
Fig. 1 is a schematic structural diagram of a grouting device according to an embodiment of the invention.
Fig. 2 is an exploded view of the grouting device according to the embodiment.
FIG. 3 is a schematic view of the second step in the construction method of the present invention.
FIG. 4 is a schematic view of the third step in the construction method of the present invention.
FIG. 5 is a diagram illustrating a fourth step in the construction method of the present invention.
FIG. 6 is a schematic view of the fifth step in the construction method of the present invention.
FIG. 7 is a diagram illustrating a sixth step in the construction method of the present invention.
FIG. 8 is a first schematic view of a seventh step in the construction method of the present invention.
FIG. 9 is a diagram illustrating a seventh step in the construction method of the present invention.
FIG. 10 is a view illustrating an eighth step in the construction method of the present invention.
FIG. 11 is a diagram illustrating a ninth step in the construction method of the present invention.
FIG. 12 is a schematic view of deformation joints of the side wall and the top plate of the side wall pipe gallery in the construction method of the present invention.
FIG. 13 is a schematic view of a deformation joint of a bottom plate of a pipe gallery in the construction method of the present invention.
Wherein: 1. organic fire-retardant coating; 2. a water-swelling sealing strip when meeting water; 3. a closed rubber strip; 4. caulking plates; 5. a rubber waterstop with a steel edge; 6. a grouting device; 6.1, grouting pipes; 6.2, connecting a box; 6.3, end rubber plug; 7. a side connecting plate; 8. sealing the box plug; 9. fixing the clamping plate; 10. constructing a joint; 11. two-component polyurethane sealant; 12. a waterproof roll reinforcing layer; 13. a main body outer waterproof roll layer; 14. concrete for side walls or top plates of the pipe gallery; 15. a U-shaped card; 16. a waterproof roll of the soleplate; 17. an additional layer of waterproofing membrane; 18. a waterproof roll protective layer; 19. a pipe gallery cushion layer; 20. galvanized water stop steel plates; 21. a bottom plate steel bar; 22. a pipe gallery outer wall sideline; 23. a bottom plate longitudinal side form; 24. adding a template; 25. cross ribs; 26. square wood; 27. a cross brace; 28. longitudinal reinforcing steel bars; 29. three-section type counter-pulling water-stopping bolts; 30. an inner longitudinal sideform; 31. lead wire; 32. Adding longitudinal ribs; 33. end plugging template; 34. a foam strip; 35. bottom plate concrete; 36. a notch; 37. a steel pipe; 38. An adhesive tape; 39. a screw rod; 40. and (4) bolts.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
A grouting device as shown in fig. 1 and 2, comprising a grouting pipe 6.1 and a connecting box 6.2, wherein one end of the grouting pipe 6.1 is fixed on the connecting box 6.2 and is communicated with the inside of the connecting box 6.2; the other end port of the grouting pipe 6.1 is a grout outlet, and the grout outlet is provided with a port sealing connecting assembly; the connecting box 6.2 is hollow, and the connecting box 6.2 is provided with a sealing box plug 8; at least two side connecting plates 7 used for connecting with a building structure are symmetrically arranged on two sides of the connecting box 6.2 respectively. In this embodiment, the sealing box plug 8 is made of a rubber material; the side connecting plate 7 extends out from the edge of the connecting box 6.2, and a connecting hole used for being connected with a building structure is formed in the side connecting plate 7.
Preferably, the grouting pipe 6.1 is bent back after extending in a direction perpendicular to the top surface of the junction box 6.2.
Preferably, the port sealing connection assembly comprises a fixing clamping plate 9 and an end rubber plug 6.3, wherein the end rubber plug 6.3 consists of a head part and a tail part, the head part is matched with the grouting pipe 6.1 and is inserted into a grout outlet of the grouting pipe 6.1; the middle part of the fixing clamping plate 9 is provided with a central hole for the head of the end rubber plug 6.3 to pass through, and the aperture of the central hole is smaller than the outer diameter of the tail part of the end rubber plug 6.3; the two sides of the fixed clamping plate 9 are connected with a building structure. In this embodiment, the fixing clip plate 9 is in a shape of a Chinese character ji, and the two sides of the fixing clip plate 9 are connecting plates, and are provided with connecting holes for connecting with a building structure.
Preferably, a plurality of grouting pipes 6.1 are arranged on the connecting box 6.2 in parallel at intervals; the bending sections of the grouting pipes 6.1 are parallel, and the center of the grout outlet is positioned on a straight line. In this embodiment, there are two grouting pipes 6.1.
The invention also provides a construction method for grouting the deformation joint of the cast-in-place pipe gallery, which comprises the construction of the deformation joint between the bottom plates of the two pipe galleries and the construction of the deformation joint between the upturned side wall of the bottom plate of the same pipe gallery and the downturned wall of the top plate. The construction method specifically comprises the following steps:
step one, preparation before construction: a plurality of grouting devices 6 as described above are provided. As shown in fig. 1 and 2, the grouting device 6 comprises two grouting pipes 6.1.
Step two, carry out the construction of piping lane bed course 19, bottom plate waterproofing membrane 16 and waterproofing roll layer protective layer in proper order: the pipe gallery cushion layer 19 is poured by C20 concrete and is 10cm thick; after the construction of the pipe gallery cushion layer 19 is completed, a pre-paved anti-sticking TPO waterproof coiled material with the thickness of 1.5mm is paved on the pipe gallery cushion layer 19, the outer end of the bottom plate waterproof coiled material 16 is rolled up to play a role in temporary protection, and a waterproof coiled material additional layer 17 is additionally arranged at the position of the outer wall of the pipe gallery on the bottom plate waterproof coiled material 16 (the side line 22 of the outer wall of the pipe gallery is shown in the figure); the fine stone concrete is poured again to form a waterproof roll protective layer 18 having a thickness of 5cm, as shown in fig. 3.
Step three, as shown in fig. 4, binding the steel bars 21 of the bottom plate of the pipe gallery, installing the galvanized water-stop steel plates 20 at the construction joints 10, and inserting the galvanized water-stop steel plates 20 into the structures at the upper side and the lower side of the construction joints 10 (specifically, the galvanized water-stop steel plates 20 are installed in the middle of the construction joints 10 and at the centers of the side walls; the installation of the galvanized water-stop steel plates 20 is the prior art). In this embodiment, the galvanized water-stop steel sheet 20 has a size of 500mm × 3 mm.
And step four, as shown in fig. 5, installing and reinforcing a bottom plate longitudinal side template 23 and an axillary corner template, and additionally arranging an additional template 24 for installing the grouting device 6 at the top of the bottom plate deformation joint. In this embodiment, the width of the additional template 24 is 40 cm; the two sides of the bottom plate are encrypted by the cross ribs 25, and the reinforcing steel bars are welded on the cross ribs 25 to clamp the additional template 24, so that the additional template 24 is prevented from floating upwards and deviating. The bottom plate longitudinal side template 23 and the axillary angle template are installed and reinforced by adopting the conventional technology: the outer sides of the formworks are provided with square timber 26, and the installation and the reinforcement of the formworks are realized by utilizing a cross brace 27 and a longitudinal steel pipe 37 acting on the square timber 26 and a three-section type counter-pulling water-stopping bolt 29 penetrating through the formworks and the square timber 26 on two sides.
And step five, installing the grouting devices 6 on the inner side longitudinal side template of the upturning side wall of the bottom plate and the additional template 24 at the deformation joint of the bottom plate respectively: holes are arranged on the installed inner longitudinal side template, bolts 40 are tightened after passing through the template and the side connecting plates 7 of the grouting device 6, so that the connecting box 6.2 of the grouting device 6 is tightened on the additional template 24, as shown in fig. 6.
Step six, installing a rubber waterstop 5 with a steel edge in the middle of the bottom plate, wherein the specific method comprises the following steps: the lead wire 31 penetrates through a small hole arranged at the tail part of the rubber waterstop 5 with the steel edge and is bound with an additional longitudinal rib 32 with the full length arranged in the bottom plate; and the additional longitudinal bar 32 is fixed by a lead wire 31 to be firmly connected with the inner and outer layer steel bars of the upturned side wall of the bottom plate or the upper and lower layer steel bars of the bottom plate, as shown in fig. 7.
Seventhly, installing end plugging templates 33 of the deformation joint bottom plate and the upturned side wall, fixing foam strips 34 on the end plugging templates 33 towards the inner side of the gallery body, tensioning and fixing the end plugging templates 33 by using steel pipes 37, lead screws and the like, tensioning and fixing the fixing clamping plates 9 of the grouting devices 6 on the end plugging templates 33 through bolts 40, and completing installation of the grouting devices 6, as shown in fig. 8 and 9. In this embodiment, the cross-sectional dimension of the foam strip 34 is 4cm × 5cm, and it is fixed to the end plugging template 33 by a U-shaped clip.
Pouring bottom plate concrete 35, maintaining and forming, removing the formwork after the strength requirement is met, and pre-embedding the grouting device 6 and the foam strips 34 in the concrete after the formwork is removed; the foam strips 34 are removed from the concrete, notches 36 of 4cm multiplied by 5cm are formed on the bottom plate and the upturned side walls of the bottom plate, then rubber plugs 6.3 at the ends of the grouting pipes 6.1 of the grouting devices 6 are pulled out, and adhesive tapes 38 are flatly attached to the grout outlets of the grouting pipes 6.1 for temporary plugging, as shown in fig. 10.
Step nine, referring to the step four to step eight, finishing the installation of end plugging templates 33 at deformation joints of the side walls and the top plate of the pipe gallery, pre-embedding the rubber waterstops 5, the foam strips 34 and the grouting devices 6, pouring and removing the side walls and the top plate, and removing the foam strips 34, and forming notches 36 (in the embodiment, the cross section of each notch 36 is 4cm multiplied by 5cm) on the cross sections of the top plate and the side walls, as shown in fig. 11.
Step ten, inserting a closed rubber strip 3 into each notch 36: brush glue in the notch 36 that the cross section of bottom plate, side wall and roof of piping lane movement joint department formed, directly insert the closed type rubber strip 3 of size adaptation again in notch 36 to brush glue along the gap of closed type rubber strip 3 and notch 36 again, guarantee that closed type rubber strip 3 firmly fixes in notch 36. In this embodiment, the size of the cross section of the notch 36 is 4cm × 5 cm; the width of the closed rubber strip 3 is 13cm, and the thickness is 4 cm; the depth of insertion of the closed rubber strip 3 into the notch 36 is 5 cm.
Step eleven, coating glue on the whole cross section of the deformation joint of the pipe gallery, then installing a caulking plate 4 and a water swelling water stop strip 2, and tightly adhering the caulking plate 4 and the closed rubber strip 3 after clamping. In this way, the closed rubber strip 3 is exposed to a size of only 5cm and is firmly fixed in the cross-section of the tube lane deformation joint. In this embodiment, the caulking plate 4 is made of a low foaming polyethylene material and has a thickness of 3 cm.
And a twelfth step of constructing the other pipe gallery according to the traditional method, and constructing the organic fireproof coating 1, the two-component polyurethane sealant 11 and the outer wall waterproof coiled material of the pipe gallery (comprising the main body outer waterproof coiled material layer 13 and the waterproof coiled material reinforcing layer 12) at the deformation joint of the junction of the two pipe galleries. In this embodiment, at the piping lane outer wall
Thirteen, grouting the deformation joint through the reserved grouting device 6 to fill the gap in the deformation joint of the pipe gallery with slurry, wherein FIG. 12 is a schematic diagram of deformation joints of the side wall and the top plate of the pipe gallery of the side wall, and FIG. 14 is concrete 14 of the side wall or the top plate of the pipe gallery; FIG. 13 is a schematic view of the tube lane floor at a deformation joint.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or equivalent substitutions of some technical features, but any modifications, equivalents, improvements and the like within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (4)

1. A construction method for grouting at a deformation joint of a cast-in-situ pipe gallery is characterized by comprising the following steps:
preparing before construction, and providing a plurality of grouting devices; the grouting device comprises a grouting pipe and a connecting box; one end of the grouting pipe is fixed on the connecting box and is communicated with the inside of the connecting box; the other end port of the grouting pipe is a grout outlet, and the grout outlet is provided with a port sealing connecting assembly; the interior of the connecting box is hollow, and the connecting box is provided with a sealing box plug; at least two side connecting plates used for being connected with a building structure are symmetrically arranged on two sides of the connecting box respectively; the grouting pipe extends out along the direction vertical to the top surface of the connecting box and then is bent; the port sealing connecting assembly comprises a fixed clamping plate and an end rubber plug, wherein the end rubber plug consists of a head part and a tail part, the head part is matched with the grouting pipe and is inserted into the grouting pipe; the middle part of the fixed clamping plate is provided with a central hole for the head part of the end rubber plug to pass through, and the aperture of the central hole is smaller than the outer diameter of the tail part of the end rubber plug; two sides of the fixed clamping plate are connected with a building structure; the sealing box plug is made of rubber materials; the side connecting plate extends out of the edge of the connecting box, and a connecting hole for connecting with a building structure is formed in the side connecting plate;
step two, constructing a pipe gallery cushion layer, a bottom plate waterproof coiled material and a waterproof coiled material protective layer in sequence;
binding a bottom plate steel bar, and installing a galvanized water-stop steel plate at the construction joint;
fourthly, installing and reinforcing a longitudinal side template and an axillary angle template of the bottom plate, and additionally arranging an additional template for installing the grouting device at the top of the deformation joint of the bottom plate;
fifthly, installing the grouting devices on the inner side longitudinal side template of the upturning side wall of the bottom plate and the additional template at the deformation joint of the bottom plate respectively;
sixthly, installing a rubber water stop belt with a steel edge in the middle of the bottom plate;
seventhly, mounting an end plugging template of the deformation joint bottom plate and the upward-turned side wall of the bottom plate, tightening and fixing the template after fixing the foam strips towards the inner side of the gallery body by the end plugging template, and tightening a fixing clamping plate of the grouting device on the end plugging template;
step eight, pouring bottom plate concrete, curing and forming, and removing the mold after the strength requirement is met; then removing the foam strips pre-embedded in the concrete to form notches;
step nine, referring to the step four-eighth, finishing top plate pouring, form removal and foam strip digging, and forming notches on the cross sections of the top plate and the side walls;
step ten, inserting a closed rubber strip into each notch;
step eleven, coating glue on the whole cross section of the deformation joint of the pipe gallery, installing a caulking plate and a water swelling water stop strip, and tightly adhering the caulking plate and the closed rubber strip after clamping;
step twelve, constructing another warehouse pipe gallery according to a traditional method, and constructing organic fireproof paint, two-component polyurethane sealant and a pipe gallery outer wall waterproof coiled material at a deformation joint of the junction of the two warehouse pipe galleries;
and thirteen, performing grouting treatment on the deformation joint through the reserved grouting device, so that the gap in the deformation joint of the pipe gallery is filled with slurry.
2. The cast-in-place pipe gallery deformation joint grouting construction method as claimed in claim 1, wherein in the sixth step, the installation method of the rubber waterstop is as follows: the lead wire penetrates through a small hole at the tail part of the rubber water stop belt and is bound with the full-length additional longitudinal rib; and the additional longitudinal bar is fixed by lead wires, so that the longitudinal bar is firmly connected with the inner and outer layer steel bars of the upturned side wall of the bottom plate or the upper and lower layer steel bars of the bottom plate.
3. The construction method for grouting at the deformation joint of the cast-in-place pipe gallery according to claim 1, wherein in step eight, the rubber plug at the end of the grouting pipe of the grouting device is removed after the mold is removed, and the rubber plug is temporarily blocked at the grout outlet of the grouting pipe by using an adhesive tape.
4. The construction method for grouting at the deformation joint of the cast-in-place pipe gallery according to claim 1, wherein in the fifth step, the installation method of the grouting device comprises the following steps: and holes are formed in the installed inner longitudinal side templates, and bolts penetrate through the templates and the side connecting plates of the grouting device connecting box and are tightened to enable the grouting device connecting box to be tightened on the additional templates.
CN202010400762.6A 2020-05-13 2020-05-13 Grouting device and construction method for grouting at deformation joint of cast-in-place pipe gallery Active CN111576424B (en)

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